Efficient and selective extraction of chlorogenic acid in juice samples using magnetic molecularly imprinted polymers

文献类型： 外文期刊

第一作者： Cheng, Yang

作者： Cheng, Yang;Liu, Hongdi;Li, Jing;Kuang, Lixue;Xu, Guofeng

作者机构：

关键词： Magnetic molecularly imprinted polymers; Chlorogenic acid; Surface imprinting; Selective extraction; Juice samples

期刊名称：MICROCHEMICAL JOURNAL （ 影响因子：5.304； 五年影响因子：4.723 ）

ISSN： 0026-265X

年卷期： 2022 年 183 卷

页码：

收录情况： SCI

摘要： In this study, magnetic molecularly imprinted polymers (Fe3O4@MIPs) were successfully synthesized through surface molecular imprinting method with chlorogenic acid (CGA) as the template molecule. The adsorption properties of Fe3O4@MIPs for CGA were carefully evaluated through adsorption kinetics, adsorption isotherms and selectivity experiments. The obtained Fe3O4@MIPs displayed high adsorption capacity (35.84 mg/g), excellent reusability and significant selectivity for CGA, and the adsorption equilibrium could be achieved within 40 min. Finally, the resulting Fe3O4@MIPs were successfully employed as effective adsorbents combined with high-performance liquid chromatography for the detection of CGA in juice samples with excellent selectivity. A good linear relationship in the range of 0.1-100 mu g/mL and the limit of detection (LOD) (0.03 mu g/mL) were obtained under the optimized conditions. The satisfactory recoveries of proposed method at three spiked levels analysis were 93.5 %-101.6 % with the relative standard deviation (RSD) less than 5 %.

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